Disable EM activity log for buddypress

function remove_em_activity_log() {
 remove_filter('em_booking_set_status','bp_em_record_activity_booking_save', 100, 2);
 remove_filter('em_booking_save','bp_em_record_activity_booking_save', 100, 2);
 remove_filter('em_booking_delete','bp_em_record_activity_booking_save', 100, 2);
}
add_action( 'bp_init', 'remove_em_activity_log',100 );